The price of house washing in Southeast Missouri follows the wall area, the number of storeys, how established the growth is, and how awkward the access. Here is how each one moves the quote, so the number you get makes sense instead of feeling plucked from the air.
Size and storeys
Wall square footage sets the base. Storeys multiply it disproportionately: a two-storey house is not twice the work of a single-storey — upper walls mean longer reach, more setup, and slower, more careful application and rinse.
Complex rooflines, gables and dormers add surface and time in ways a simple footprint number misses, which is why photos beat square footage for quoting accuracy.
Condition and growth
Recent, light growth is a standard wash. Heavy, established colonies — especially lichen or thick mildew on shaded walls — need stronger solution, longer dwell and sometimes two passes. The difference shows up in the price, which is one more argument for regular cycles over rescue jobs.
Oxidised vinyl is its own case: chalky surface degradation limits what any wash can achieve, and an honest quote will set that expectation upfront rather than after.
Access and extras
Steep grades, narrow side yards, decks under upper walls and dense foundation planting all add time. None are dealbreakers; all are line items.
The extras worth considering while the truck is there: gutter exteriors and brightening, the driveway, walkway and porch. Each added surface on the same visit is cheaper than the same surface on its own visit — most of what you pay for in mobile work is the mobilisation.
Photos of the worst two walls get you an accurate range, usually the same day. Read more about house washing in Southeast Missouri →